svn commit: r986212 - in /incubator/clerezza/issues/CLEREZZA-270/org.apache.clerezza.parent/org.apache.clerezza.platform.content/src/main/java/org/apache/clerezza/platform/content/collections: ./ CollectionCreator.java

[re...@apache.org]

Author: reto
Date: Tue Aug 17 07:21:06 2010
New Revision: 986212

URL: http://svn.apache.org/viewvc?rev=986212&view=rev
Log:
CLEREZZA-270: replacement for old hierarchyservice

Added:
    incubator/clerezza/issues/CLEREZZA-270/org.apache.clerezza.parent/org.apache.clerezza.platform.content/src/main/java/org/apache/clerezza/platform/content/collections/
    incubator/clerezza/issues/CLEREZZA-270/org.apache.clerezza.parent/org.apache.clerezza.platform.content/src/main/java/org/apache/clerezza/platform/content/collections/CollectionCreator.java

Added: incubator/clerezza/issues/CLEREZZA-270/org.apache.clerezza.parent/org.apache.clerezza.platform.content/src/main/java/org/apache/clerezza/platform/content/collections/CollectionCreator.java
URL: http://svn.apache.org/viewvc/incubator/clerezza/issues/CLEREZZA-270/org.apache.clerezza.parent/org.apache.clerezza.platform.content/src/main/java/org/apache/clerezza/platform/content/collections/CollectionCreator.java?rev=986212&view=auto
==============================================================================
--- incubator/clerezza/issues/CLEREZZA-270/org.apache.clerezza.parent/org.apache.clerezza.platform.content/src/main/java/org/apache/clerezza/platform/content/collections/CollectionCreator.java (added)
+++ incubator/clerezza/issues/CLEREZZA-270/org.apache.clerezza.parent/org.apache.clerezza.platform.content/src/main/java/org/apache/clerezza/platform/content/collections/CollectionCreator.java Tue Aug 17 07:21:06 2010
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.clerezza.platform.content.collections;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import org.apache.clerezza.rdf.core.MGraph;
+import org.apache.clerezza.rdf.core.UriRef;
+import org.apache.clerezza.rdf.core.impl.TripleImpl;
+import org.apache.clerezza.rdf.ontologies.HIERARCHY;
+import org.apache.clerezza.rdf.ontologies.RDF;
+
+/**
+ * Creates the collections containing a resource in an underlying MGraph
+ *
+ * @author reto
+ */
+public class CollectionCreator {
+
+	private MGraph mGraph;
+
+	public CollectionCreator(MGraph mGraph) {
+		this.mGraph = mGraph;
+	}
+
+	public void createContainingCollections(UriRef uriRef) {
+		try {
+			URI uri = new URI(uriRef.getUnicodeString());
+			if (uri.getHost() == null) {
+				throw new IllegalArgumentException("Host name missing in " + uriRef);
+			}
+			String[] pathSections = uri.getRawPath().split("/");
+			for (int i = pathSections.length - 1; i >= 0 ; i--) {
+				String section = pathSections[i];
+				if (section.length() == 0) {
+					if (i == 0) {
+						return;
+					} else {
+						throw new IllegalArgumentException(
+								uriRef+" contains consequtive slashes in path section");
+					}
+				}
+				final String unicodeString = uriRef.getUnicodeString();
+				int lastIndexOf = unicodeString.lastIndexOf(section);
+				UriRef parentUriRef = new UriRef(unicodeString.substring(0, lastIndexOf));
+				mGraph.add(new TripleImpl(uriRef, HIERARCHY.parent, parentUriRef));
+				mGraph.add(new TripleImpl(parentUriRef, RDF.type, HIERARCHY.Collection));
+				uriRef = parentUriRef;
+
+			}
+		} catch (URISyntaxException ex) {
+			throw new IllegalArgumentException(ex);
+		}
+	}
+
+
+}